Abo Bibliothek: Guest

ISSN Online: 2377-424X

International Heat Transfer Conference 3
August, 7-12, 1966, Chicago, USA

INFLUENCE OF THERMAL DIFFUSION ON TRANSPIRATION COOLING AT AN AXI-SYMMETRICAL STAGNATION POINT

Get access (open in a dialog) DOI: 10.1615/IHTC3.1930
pages 7-14

Abstrakt

An experimental investigation is described into the influences of thermal diffusion and of the coupling between diffusion and heat conduction on the transpiration-cooling of a porous bronze disc embedded in a plane surface on which impinges a hot-air jet; air, nitrogen, hydrogen, helium, carbon dioxide and Arcton-13 (CCIF3) are injected through the disc towards the air stream at various rates. Measurements are made of the adiabatic-wall temperature and of the heat-transfer coefficient. It is shown, in agreement with the theoretical predictions of other authors, that the main influence of the linkage of the conduction and diffusion lies in the shift in the adiabatic-wall temperature.